Although Deezer is not currently built in, you can still play content from your Deezer account to 851N.
You can stream from Deezer to your 851N using AirPlay from a compatible Apple device.
Choose More Devices and select the Apple AirPlay icon from within Deezer. Apple AirPlay supports a maximum sample rate and bit depth of 44.1kHz/16bit.
USB Audio from PC or Mac
The Deezer desktop app can also be played from your PC or Mac via a USB Audio connection to your 851N.
Connect a USB A to B cable between your PC or Mac and the 851N and select USB Audio as the desired digital input through the 851N’s interface.
Audio can also be played over a Bluetooth connection available by connecting the optional BT100 Bluetooth receiver and pairing it to your smart device.